Home / 7,479.48-11,219.70-4,395

Finding the Fourth Proportional to 7,479.48, 11,219.70 and 4,395

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Solution

The fourth proportional to 7,479.48, 11,219.70 and 4,395 is: 6,592.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.48 : 11,219.70 = 4,395 : x
  2. Step 2: Convert to fraction form
    7,479.48/11,219.70 = 4,395/x
  3. Step 3: Cross multiply
    7,479.48x = 11,219.70 × 4,395
  4. Step 4: Simplify right side
    7,479.48x = 49,310,581.50
  5. Step 5: Solve for x
    x = 49,310,581.50/7,479.48
  6. Step 6: Final answer
    x = 6,592.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.